pud_wrprotect 222 arch/s390/mm/pageattr.c new = pud_wrprotect(new); pud_wrprotect 276 include/asm-generic/pgtable.h set_pud_at(mm, address, pudp, pud_wrprotect(old_pud)); pud_wrprotect 1145 mm/huge_memory.c pud = pud_mkold(pud_wrprotect(pud));